Finding the Fourth Proportional to 296,488.01, 409,153.61 and 160,521.99

Step by Step Solution

1. Step 1: Write the proportion equation
   296,488.01 : 409,153.61 = 160,521.99 : x
2. Step 2: Convert to fraction form
   296,488.01/409,153.61 = 160,521.99/x
3. Step 3: Cross multiply
   296,488.01x = 409,153.61 × 160,521.99
4. Step 4: Simplify right side
   296,488.01x = 65,678,150,559.86
5. Step 5: Solve for x
   x = 65,678,150,559.86/296,488.01
6. Step 6: Final answer
   x = 221,520.43